Poor Service by Jenny. *****ulant services

Since December I am on a 50mb line. They are invoicing me for a 50mb line and could not once even deliver 20mb. Numerous calls and 100's of tickets opened and no satisfaction. I am a up to date client with payments 2 months in advance. A person would think that a client like myself would be looked after seeing that I pay in advance but no, Jenny is just in it for debit and not service. I requested in March to be downgraded to a 20mb line and to date nothing. Internet is almost never available.